SIMFEROPOL, UKRAINE - MARCH 13: Supporters of Ukraine, some with their mouths taped over, attend a rally in support of the Keeping Crimea a part of the Ukraine on March 13, 2014 in Simferopol, Ukraine. As the standoff between the Russian military and Ukrainian forces continues in Ukraine's Crimean peninsula, world leaders are pushing for a diplomatic solution to the escalating situation. Crimean citizens will vote in a referendum on 16 March on whether to become part of the Russian federation. (Photo by Spencer Platt/Getty Images)